Prosecution Insights
Last updated: April 19, 2026
Application No. 18/693,990

AIR FOIL JOURNAL BEARING

Final Rejection §112
Filed
Mar 21, 2024
Examiner
PILKINGTON, JAMES
Art Unit
3617
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Hanon Systems
OA Round
2 (Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
2y 6m
To Grant
99%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
1098 granted / 1568 resolved
+18.0% vs TC avg
Strong +36% interview lift
Without
With
+35.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
52 currently pending
Career history
1620
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
37.2%
-2.8% vs TC avg
§102
22.0%
-18.0% vs TC avg
§112
36.7%
-3.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1568 resolved cases

Office Action

§112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 3-6 and 16-20 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claims 3 and 4 both recite the limitation "the rotation direction of the rotor" in line 3 of both claims. There is insufficient antecedent basis for this limitation in the claims. The antecedent basis for this recitation was originally found in previous claim 2 which has now been canceled. Claims 3 and 4 have also been amended to define “vertically downward direction” and “vertically upward direction”, respectively. However, the subject matter is a standalone foil bearing which can be manipulated and reoriented into a number of different directions/orientation and it is unclear if someone were to reorient the device so that the angle range is present relative to another axis, the horizontal or even rotating the whole bearing so it is in the horizontal plane with the rotor extending vertically, if they would be infringing upon the claim. Is the intent for the recitation to define the bearing in an installed configuration? If so the scope of the claim shouldn’t be a standalone bearing but rather a machine with a foil bearing installed in it in a specific manner. Regarding claim 16, the claim was amended to address the previous rejection to state that “at least one groove is formed in a shape corresponding to a stepped portion lateral surface” however it is unclear what shapes this is limiting the claim to. More specifically the lateral surface is 311, this is a flat wall, what shapes for a groove are considered to be in a “shape corresponding” to a flat wall? A groove generally has a bottom and two sides how is this general groove shape related/corresponding to a flat surface? The original issue was based around the use of “corresponding” and the scope of that term in conjugation with the rest of the requirements not being clear, it is suggested that “corresponding” be avoid and the claim state that the groove extends in the same direction as the lateral surface as it appears to be this feature that Applicant was attempting to capture in original claim 16. Allowable Subject Matter Claims 1, 7 and 10-15 allowed. Claim 16, and claims depending therefrom, would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 1, the claim has been amended to include the previously indicated allowable of claim 9, the claim is defining a process, however the process is etching which implies that the remaining region is cut out of a larger homogenous piece of material. A mid-foil that is made of one-piece of material with a stepped portion is not disclosed or rendered obvious the by the prior art of record. Regarding claim 7, the prior art of record does not disclose or render obvious the claimed combination wherein the step is formed in the mid-foil by bending an otherwise uniformly thick board (or sheet) of material. While this recitation could be viewed as product by process there is structure implied, that being that the mid-foil is one homogenous body, this is not found in the prior art of record. Regarding claim 16, the prior art of record does not teach nor render obvious the use of groove in the stepped portion in a region adjacent to the starting point, the groove having a longitudinal dimension extending in the same direction as the lateral surface and a width extending in the circumferential direction. Response to Arguments Applicant’s arguments with respect to the claim(s) have been considered but are moot because the new ground of rejection, necessitated by the amendment, does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JAMES PILKINGTON whose telephone number is (571)272-5052. The examiner can normally be reached Monday through Friday 7-3. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, John Olszewski can be reached at 571-272-2706. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /JAMES PILKINGTON/Primary Examiner, Art Unit 3617
Read full office action

Prosecution Timeline

Mar 21, 2024
Application Filed
Sep 30, 2025
Non-Final Rejection — §112
Dec 30, 2025
Response Filed
Feb 11, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601372
WHEEL BEARING ASSEMBLIES AND VEHICLES
2y 5m to grant Granted Apr 14, 2026
Patent 12595824
Plain Bearing Assembly Having a Rail and a Slide
2y 5m to grant Granted Apr 07, 2026
Patent 12595821
FOIL BEARING ASSEMBLY INCLUDING BIDIRECTIONAL ANTI-ROTATION FEATURES AND COMPRESSOR INCLUDING SAME
2y 5m to grant Granted Apr 07, 2026
Patent 12590603
JOURNAL BEARING HYBRID DAMPENING FOR INCREASED TEMPERATURE RANGE
2y 5m to grant Granted Mar 31, 2026
Patent 12584514
GAS BEARING DEVICE AND TURBOCHARGER
2y 5m to grant Granted Mar 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
70%
Grant Probability
99%
With Interview (+35.6%)
2y 6m
Median Time to Grant
Moderate
PTA Risk
Based on 1568 resolved cases by this examiner. Grant probability derived from career allow rate.

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